111671560671664 has 20 divisors (see below), whose sum is σ = 247272741487504. Its totient is φ = 47859240287808.

The previous prime is 111671560671661. The next prime is 111671560671679. The reversal of 111671560671664 is 466176065176111.

It is a junction number, because it is equal to n+sod(n) for n = 111671560671599 and 111671560671608.

It is not an unprimeable number, because it can be changed into a prime (111671560671661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498533752887 + ... + 498533753110.

Almost surely, 2^{111671560671664} is an apocalyptic number.

111671560671664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111671560671664 is an abundant number, since it is smaller than the sum of its proper divisors (135601180815840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111671560671664 is an equidigital number, since it uses as much as digits as its factorization.

111671560671664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997067506012 (or 997067506006 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 111671560671664 in words is "one hundred eleven trillion, six hundred seventy-one billion, five hundred sixty million, six hundred seventy-one thousand, six hundred sixty-four".